. >> it's not an agent, it's a homeless guy on a bench. the guy starts asking what kind of toppings? >> maybe half cheese. half pepperoni and, hey, can you pay for it too. >> the person's like, no, it's on us. >> hey, appreciate that, buddy. >> i love this. >> it's like the best kind of prank. because nobody gets hurt. >> he's done this before. this is his thing. he likes to help the homeless by preying on fast-food joints. >> i can't advise you call and pretend you're a police officer, but in this case he's doing something good. delivery car pulls up. you see the person get out with the pizza. does not make conversation, sets the pizza down and walks away. imagine the surprise on this box. doesn't look who brought the pizza, just picks up a slice, starts munching away. >> all this go off with one word. >> this is sergeant tom -- >> that's all he said to make this prank happen. >> the problem, the pizza delivery guy probably didn't get a tip. my only problem. >>> this bulldog loves the blues. [ laughter ] >> this is awesome! he's actually